Improvement in pans for evaporating cane-juice



D.- M. COOK.

. Evaporating Pan.

No. 20.631. Patented June 22, 1858.

Witnesses= Inventor,

AM. PHOT0-LXTHO.'CO.N.Y. (DSBORNE'S PROCESS) UNITED STATES PATENT OFFIC D. M. COOK, OF MANSFIELD, OHIO.

.IMPROVEMENT IN PANS FOR EVAPORATING CANE-JUICE.

Specification forming part of Letters Patent No. 20,631,, dated June 22, 1858.

To aZZ whom it mayhoncer-n: v

Be it known that I, D. M. CooK, of Mans field, in the county of Richland and State of Ohio, have inventeda new Sugar-Evaporator,

for the purpose of making refined sugar direct from the ripe cane-juice or maple-sap; and I do hereby declare that the following is a full, clear, and exact description of the construc tion and operation of the same.

Figure 1 is a plan view of the evaporating surface, showing the transverse channel from a to a, and the direction of the current of juice or sap, as indicated by the arrows, together with the shimmers, as they are placed in a1- tcrnate curvatures of the channel for the purpose of removing the scum. The wooden heading 0 0 is made with a rabbet of any convenient depth and width, and tightly keyed against the flanges (Z (Z, then firmly screwed through the turned-down flanges at the points of the arrows. The flanges (Z (Z are formed by crimping any suitable metal sheeting into flanges and spaces of any desirable width and depth, the spaces a 0 being connected by the wooden heading and the turning down of the flanges at alternate ends, and filling the flanges with any suitable metal at intervals from the heading 0 0 equal to the spaces 0 c. The head of the rockers on which the evaporator rests are seen at f f f f. g g represent the rubbers and screws by which the evaporator is regulated to any requisite level which secures the ready discharge of the sirup to any requisite consistency into the siruptank h. i represents the escapement for the smoke through the floor of the evaporator between the flanges (Z and j. The transverse crossing of the channel a 6 may be continued to any desirable number of times, so as to form an evaporator of any convenient length and width. The rockers and heading I in common make of wood, buteither or both of them may be made of metal.

Fig. 2 represents a sectional view of the evaporator, showing the open firesurface of the flanges (Z (Z, together with the shape and position of the fire-place and flue 70 k, as they are riveted or bolted onto the bottom of the evaporator and the smoke-pipe 2'. Z Z show a section of the ties framed into the rockers f f f f,- m, the door of the fireplace thrown open.

F1 3 represents a side view of the evaporator with the headingcc resting on the rockers f f f f, together with the rubbers g g, the friction-segments a a, and the flangeso 0,which prevent the displacement of the rockers f f f f and the leveling-frame p p, on which the rockers rest.

Fig. 4 represents a front view of the evaporator, showing the evaporator resting in the rabbet of the wooden heading 0 0, together with the shape and position of the skimmer-s b b, the fire-place k, and the fire-guards q g, which protect the wooden rockers from injury.

Fig. 5 represents a back view of the evaporator, the ties Z land the braces r 1' connecting the rockers and the ties Z Z, which keepthe whole frame firm, the rubbers g g, framed into the ties s s, which connect the leveling frame pp and the shape of the smoke-pipe z.

The mode of operation consists in carefully cleansing and greasing the evaporator before using it, and cleansing and greasing the same as often as necessary, which prevents the adhesion and discoloring of the sirup during its concentration. Thejniee or sap being allowed to flow into the channel at a and recede in the direction of the arrows from the front of the evaporator, which allows the sirup to be re duced to its greatest consistency under amodcrate heat. When all the sap orjuice is run into the channel, common water is then allowed to flow in at a, which drives all the sirup from the channel. The rockers are for the purpose of supporting the evaporator, accelerating and retarding the flow of the sirup, which secures any desirable consistency to the same.

I do not wish to be understood as claiming the corrugation of sheet metal into flanges and spaces, so as to form anevaporatorwith transverse partitions running from opposite sides, thereby producing a continuous and opposite current in the fluid evaporated, as such is a well-known device; but

I claim The evaporator,as in Fig. l, in combination with fireplace and flue k, the rockers f f, the leveling-frame p, the rubbers g, and the flanges o, as described, and for the purposes set forth.

D. M. COOK. Attest:

JOHN MEREDITH, ISAIAH WALKER. 

